Your Interactive Brokers taxes in Canada. ACB and Schedule 3 in 3 minutes.

A T5008 shows proceeds, not your adjusted cost base. Upload your statement and get the ACB in Canadian dollars, superficial losses flagged, and every figure for Schedule 3, T2209 and T1135.

Adjusted cost base
Superficial-loss check
T1135 threshold

⏳ Tax year 2025 · The regular deadline has passed — file as soon as possible to limit late penalties.

Why get it right

CRA sees the slips

T5008 and T5 slips go to the CRA. Wrong cost bases are one of the most common reasons for reassessment.

T1135 penalties

Foreign property over CAD 100,000 must be reported: $25 a day late, up to $2,500 per year — more for gross negligence.

Losses that don't count

Buy the same stock within 30 days of a loss and the loss is denied. We flag every case.

How it works

Download your statement

In the IBKR Client Portal: Performance & Reports → Statements → Activity → Annual, format CSV.

Upload it here

We match every sale with its purchases and convert each amount at the official rate of the day.

Copy the figures

See your tax and every line for your return — free, with an Excel file.

How to export the statement from Interactive Brokers

In the IBKR Client Portal open Performance & Reports → Statements.
Under Activity choose Annual and the tax year (add earlier years so sales match their real purchases).
Choose CSV (or HTML), click Run and upload the file here.
Alternatively: an Activity Flex Query in XML with Trades, Cash Transactions, Open Positions and Corporate Actions.

Guides

Adjusted cost base for IBKR trades: a Canadian ACB guideHow to calculate the adjusted cost base in CAD for Interactive Brokers trades, why IBKR's P/L and T5008 differ, and what goes on Schedule 3, with an example.Superficial loss rule in Canada for IBKR investorsWhen the CRA denies a capital loss under the 30-day superficial loss rule, how the denied loss moves to your ACB, and the TFSA and DRIP traps at IBKR.T1135 and Interactive Brokers: do you need to file?Do IBKR investors need Form T1135? The CAD 100,000 cost test, what counts as foreign property, simplified vs detailed reporting and the late-filing penalties.

Questions

How is the adjusted cost base calculated?

All identical shares are pooled: ACB = total cost in CAD (purchase price plus commissions, converted at each trade's rate) divided by the number of shares.

What inclusion rate applies?

50% of a net capital gain is taxable. The proposed increase to two-thirds was cancelled in March 2025.

What is a superficial loss?

A loss on a sale where you (or an affiliated person) buy the same property within 30 days before or after. The loss is denied and added to the cost of the new shares.

Do I need form T1135?

Yes, if the total cost of your foreign property exceeded CAD 100,000 at any time in the year. Shares in a non-registered IBKR account count.